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JEE CHEMISTRY MCQ: HALOALKANES AND HALO ARENES

1 Medium

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Analyzing +4 | -1

Which one of the following is excellent substrate for

\text{SN}^1

reaction?

View answer and explanation

Correct option: C

\left(\mathrm{CH}_3\right)_2 \mathrm{~N}-\mathrm{CH}_2 \mathrm{Cl}

Option C is correct because the carbocation formed in the SN1 reaction is stabilized by the delocalization of electrons from the nitrogen atom.

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An alkyl halide reacts with metallic sodium in dry ether. The reaction is known as : In electrophilic substitution reaction of chlorobenzene, the chloro group: Which of the followings statements is/are incorrect? Polymerization of alkenes takes place through Assertion (A): The boiling points of alkyl halides decrease in the order:

RI > {R B r} > {R C I} > {R F}

.

Reason (R): The boiling points of alkyl chlorides, bromides and iodides are considerably higher than that of the hydrocarbon of comparable molecular mass. Friedel-Craft’s reaction of bromobenzene with methyl iodide gives: